Why all these read errors? (CFG loader) [SOLVED]

Thx for reading!

I recently softmodded my Wii and ask myself if the following is normal.

If I insert a original disk and dump it to the HDD it always throws a bunch of warnings at the end of the process.
"WARNING: read (10digit number) error (-2)"
or
"WARNING: read (10digit number) error (-2)1"
The disks are brand new and unscratched.

Playing the disk from the DVD drive or from HDD goes fine as far as I can tell.

Found the solution by experimenting myself.
Because I used the "install_partitions = iso" setting it gave me the read errors.
I guess the DVD drive tried to read until the edge to make sure.
I deleted this line which makes the default [only_game] active.
(Quicker and smaller file size as well.)